package course.com.itheima.studentproject.dao;

import course.com.itheima.studentproject.domain.Student;

public abstract class BaseStudentDao {

    public abstract boolean addStudent(Student student);

    public abstract Student[] findAll();

    public abstract boolean updateStudent(Student stu);

    public abstract boolean deleteStudent(int index);

    public abstract int isExist(String id) ;
}
